package service;

public class StringConcat {
        public static void main(String[] args) {
                int a = 10 ;
                int b = 20 ;
                int c = a + b ;
                boolean aBiggerTanB = a > b ;
                System.out.println( "a > b 是" + aBiggerTanB + "的");
                System.out.println( "a + b =" + c );
                System.out.println( "a + b =" + a + b );
                System.out.println( "a + b =" + ( a + b )) ;
                System.out.println( "a * b =" + a * b) ;
        }
}